1/2” HEX SHANK 10 STEP DRILL BIT 1/4”- 1 3/8” HSS TITANIUM NITRIDE
ALL IN ONE 1/2” HEX SHANK 10 SPEP DRILL BIT 1/4”- 1 3/8” HSS TITANIUM NITRIDE Features Manufacture With Heat Treated HSS Coated With Titanium Nitride Two Flute Design For Faster Smoothe Cutting For Drilling Holes In Thin Material Such As Steel Stainless Steel Copper Alum Self Starting No Walking & Center Punch is Not Reguired 10 Hole Sizes In 1 1/8” Increments Sizes : 1/4”, 3/8”,1/2”,5/8”,3/4”,7/8”,1”,1-1/8”,1-1/4”- 1-3/8”